Named By: Harry Govier Seeley - 1871.
Synonyms: Ornithostoma seeleyi.
Classification: Chordata, Reptilia, Pterosauria, Pterodactyloidea, Pteranodontidae.
Species: O. sedgwicki (type).
Known locations: England - Cambridge Greensand.
Time period: Early Cretaceous.
Fossil representation: Numerous remains, although often in a state of poor preservation.
was once considered to identical to Pteranodon,
thinking has it recognised as its own genus. Unfortunately
Ornithostoma has suffered from the wastebasket
effect with numerous
poorly preserved remains being attributed to it.
Although not much is known for certain, the toothless beak of Ornithostoma likely indicates a fish eating piscivorous lifestyle. This notion is reinforced by the fact the Cambridge Greensand is a marine deposit.
- Additional evidence on the structure of the head in ornithosaurs from the Cambridge Upper Greensand; being a supplement to "The Ornithosauria". - Annals and Magazine of Natural History 7:20-36. - H. G. Seeley - 1871.
- Ornithostoma sedgwicki – valid taxon of azhdarchoid pterosaurs. - Proceedings of the Zoological Institute RAS, 316(1): 40–49. - A. O. Averianov - 2012.
- Edentulous pterosaurs from the Cambridge Greensand (Cretaceous) of eastern England with a review of Ornithostoma Seeley, 1871. - Proceedings of the Geologists' Association. - Roy E. Smith, David M. Martill, David M. Unwin & Lorna Steel - 2020.